1. Freshwater fish of Central America having a long swordlike tail; popular aquarium fish
   - swordtail, topminnow, Xyphophorus helleri

Derived forms: helleris

Type of: cyprinodont

Part of: genus Xyphophorus, Xyphophorus

• bottom-feeder
• bottom-feeding
• bottom-up
• bottomed
• bottomland
• bottomless
• bottomlessness
• bottommost
• bottoms up
• botuliform
• botulin
• botulinal
• botulinum
• botulinum toxin
• botulinum toxin A
• botulinus
• botulinus toxin
• botulism
• botulismotoxin
• bouchee
• bouclé
• boudoir
• bouffant
• bouffe
• Bougainvillaea